A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 4140-00-740-2153
NSN 4140-00-104-7323
NSN 6320-00-701-0437
NSN 5975-00-473-7859
NSN 5905-00-404-3836
NSN 5920-00-644-0379
NSN 5895-01-430-9208
NSN 4140-01-280-5364
NSN 5835-01-474-1224
NSN 5910-00-387-4037
NSN 6685-01-025-6765
NSN 5990-01-237-9044